Fujitsu ASG30LMTA Service Instruction page 60

Trouble shooting 24
OUTDOOR UNIT Error Method:
Heat Sink Thermistor Error
Detective Actuators:
Inverter PCB
Forecast of Cause :
AMP Air Conditioning
Indicate or Display:
Indoor Unit :
Detective details:
1. Inverter PCB failure
If this error is displayed, replace Inverter PCB
Operation lamp: 7 times Flash,
Timer lamp : 7 times Flash
Heat sink temperature thermistor (Built-in IPM) open/short detected
02-27
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Wired Remote Controller :
ERROR CODE : [E : 77]